Abstract
The presence of a “zero-pole” in nuclear diagonalS-matrix was found to be dominant in both elastic and inelastic scattering angular distributions of α-particles (E=24 and 29 MeV) on Ca40,42,44,48 nuclei. The inelastic scattering amplitudes were evaluated by making use of the derivative relation of Austern and Blair for one and two phonon excitation mechanism. Reduced matrix elementsC1(I) and deformation lengthsBIR are derived. Consistent vibrational model description for Ca40,42,44,48 energy levels is presented.
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